Chemistry - Coordination Chemistry Question with Solution | TestHub

${\left[\mathrm{Ni}(\mathrm{CN}{)}_4\right]}^{-2}>{\left[{\mathrm{NiF}}_6\right]}^{-4}-\mathrm{CFSE}$

$\left[\mathrm{Ni}(\mathrm{CO}{)}_4\right]<\left[\mathrm{Fe}(\mathrm{CO}{)}_5\right]-$ valence shell electrons on central metal ion.

${\left[\mathrm{Fe}(\mathrm{CN}{)}_6\right]}^{-3}>{\left[{\mathrm{FeF}}_6\right]}^{-3}$ - Number of unpaired electrons of central metal ion

${\left[{\mathrm{CoF}}_6\right]}^{-3}>{\left[\mathrm{Co}(\mathrm{CN}{)}_6\right]}^{3-}$ - stability